To amend the Clean Air Act to preserve regulatory stability for motor vehicles, motor vehicle engines, nonroad vehicles, and nonroad engines, and for other purposes.

The bill titled "To amend the Clean Air Act" was introduced in the 119th Congress as H.R. 9618 on July 9, 2026. The purpose of the bill is to maintain regulatory stability for motor vehicles, motor vehicle engines, nonroad vehicles, and nonroad engines under the Clean Air Act. The specific provisions, findings, or directives within the bill have not been provided in the context.